private static final int PHOTO_REQUEST_TAKEPHOTO = 1;// 拍照

    private static final int PHOTO_REQUEST_GALLERY = 2;// 从相册中选择

    private static final int PHOTO_REQUEST_CUT = 3;// 结果

    private File tempFile = new File(Environment.getExternalStorageDirectory(),

            getPhotoFileName());

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {

        switch (requestCode) {

        case PHOTO_REQUEST_TAKEPHOTO:// 当选择拍照时调用

            startPhotoZoom(Uri.fromFile(tempFile));

            break;

        case PHOTO_REQUEST_GALLERY:// 当选择从本地获取图片时

            // 做非空判断，当我们觉得不满意想重新剪裁的时候便不会报异常，下同

            if (data != null) {

                System.out.println("11================");

                startPhotoZoom(data.getData());

            } else {

                System.out.println("================");

            }

            break;

        case PHOTO_REQUEST_CUT:// 返回的结果

            if (data != null)

                // setPicToView(data);

                sentPicToNext(data);

            break;

        }

        super.onActivityResult(requestCode, resultCode, data);

    }

 // 使用系统当前日期加以调整作为照片的名称

    private String getPhotoFileName() {

        Date date = new Date(System.currentTimeMillis());

        SimpleDateFormat dateFormat = new SimpleDateFormat(

                "'IMG'_yyyyMMdd_HHmmss");

        return dateFormat.format(date) + ".jpg";

    }

Intent cameraintent = new Intent(

                                    MediaStore.ACTION_IMAGE_CAPTURE);

                            // 指定调用相机拍照后照片的储存路径

                            cameraintent.putExtra(MediaStore.EXTRA_OUTPUT,

                                    Uri.fromFile(tempFile));

                            startActivityForResult(cameraintent,

                                    PHOTO_REQUEST_TAKEPHOTO);

Intent getAlbum = new Intent(Intent.ACTION_GET_CONTENT);

                            getAlbum.setType("image/*");

                            startActivityForResult(getAlbum, PHOTO_REQUEST_GALLERY);

private void startPhotoZoom(Uri uri) {

        Intent intent = new Intent("com.android.camera.action.CROP");

        intent.setDataAndType(uri, "image/*");

        // crop为true是设置在开启的intent中设置显示的view可以剪裁

        intent.putExtra("crop", "true");

        // aspectX aspectY 是宽高的比例

        intent.putExtra("aspectX", 1);

        intent.putExtra("aspectY", 1);

        // outputX,outputY 是剪裁图片的宽高

        intent.putExtra("outputX", 300);

        intent.putExtra("outputY", 300);

        intent.putExtra("return-data", true);

        intent.putExtra("noFaceDetection", true);

        System.out.println("22================");

        startActivityForResult(intent, PHOTO_REQUEST_CUT);

    }

        mDialog = new AlertDialog.Builder(this, R.style.FullScreenDialog)

                .create();

        if (mDialog != null && !mDialog.isShowing()) {

            mDialog.show();

            mDialog.setContentView(R.layout.dialog_select_imge);

            mDialog.setCanceledOnTouchOutside(false);
        }

<style name="FullScreenDialog" parent="android:style/Theme.Dialog">

        <item name="android:windowNoTitle">true</item>

        <item name="android:windowFrame">@null</item>

        <item name="android:windowIsFloating">true</item>

        <item name="android:windowIsTranslucent">false</item>

        <item name="android:background">@android:color/transparent</item>

        <item name="android:windowBackground">@android:color/transparent</item>

        <item name="android:backgroundDimEnabled">true</item>

    </style>